Development of a Stator-Magnetless Linear Synchronous Motor for Sensorless Control

Autor: Tsuyoshi Higuchi, Masanobu Kakihara, Motomichi Ohto, Takashi Abe, Yoshiyasu Takase, Mamoru Takaki, Toru Shikayama, Shogo Makino
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: IEEE Transactions on Industry Applications. 53(5):4559-4568
ISSN: 0093-9994
Popis: Sensorless control techniques that do not use a linear scale are desired for applications that require a long-stroke linear synchronous motor (LSM). This paper discusses the development of a stator-magnetless LSM (i.e., no magnet is mounted on the stator of the LSM) for sensorless control that includes a high-speed position estimation algorithm based on the magnetic saturation phenomenon. This paper presents a new structure of a flux-switching LSM that achieves a high saliency ratio using a cutout that results in magnetic saturation in the armature core. The effect of the sub-tooth on reducing the cogging thrust is also discussed. Furthermore, the analytical and experimental characteristics of inductance, thrust, cogging thrust, and sensorless drive control are discussed based on a prototype.
IEEE Transactions on Industry Applications, 53(5), pp.4559-4568; 2017
Databáze: OpenAIRE